Search results for " Sinus"
showing 6 items of 276 documents
Tumours of Nasal Septum: A Retrospective Study of 32 Patients
2022
Objective: Tumours of the nasal septum are a rare and heterogeneous group of lesions in the sinonasal tract. The management of the different lesions of this site is debated. The aim of this study is to share our experience on a rare clinical condition and stimulate other centres to publish theirs. Methods: We retrospectively analysed the databases of sinonasal tumours treated at the Sections of Otolaryngology (ENT) of two University Hospitals (Palermo and Genova) between 2012 and 2020. Results: From the two databases, a cohort of 32 patients with tumours of nasal septum were selected. All patients underwent an endoscopic examination. Large tumours underwent preoperative computed tomography …
Respiratory Sinus Arrhythmia Mechanisms in Young Obese Subjects
2020
Autonomic nervous system (ANS) activity and imbalance between its sympathetic and parasympathetic components are important factors contributing to the initiation and progression of many cardiovascular disorders related to obesity. The results on respiratory sinus arrhythmia (RSA) magnitude changes as a parasympathetic index were not straightforward in previous studies on young obese subjects. Considering the potentially unbalanced ANS regulation with impaired parasympathetic control in obese patients, the aim of this study was to compare the relative contribution of baroreflex and non-baroreflex (central) mechanisms to the origin of RSA in obese vs. control subjects. To this end, we applied…
Elevación sinusal indirecta con o sin injerto óseo en maxilares superiores atróficos
2015
En la zona posterior del maxilar suele presentarse una escasa disponibilidad ósea vertical, debido a senos maxilares muy neumatizados o grandes atrofias de la cresta alveolar, impidiendo la colocación de los implantes de forma convencional. Uno de los posibles tratamientos de esta limitación anatómica sería la elevación sinusal, mediante la técnica directa o la indirecta, consideradas actualmente una práctica quirúrgica habitual en la implantología oral. La elevación sinusal indirecta, con introducción de material de injerto y colocación inmediata del implante, fue descrita por Summers en 1994. Se trataba de una nueva forma de elevación sinusal usando una serie de osteotomos de diámetros di…
Maxillary sinus lift with intraoral autologous bone and B ? Tricalcium Phosphate : histological and histomorphometric clinical study
2007
Introduction: Rehabilitation with implants in the upper maxilla often implies a challenge due to the shortage and quality of the remaining bone. Different kinds of grafts have been described in an endeavour to solve these problems. Aim: The purpose of this study was to assess the osteoconduction potential of an autogenous bone and B-Tricalcium Phosphate mixture, in the treatment of atrophic upper maxillae. Materials and Methods: 22 patients were treated using the "sinus lift" technique. All patients had residual bone equal to or greater than 5 mm, the sinus was lifted, bone grafted and implants installed during the same surgical procedure (autologous bone and B- Tricalcium Phospahate). Duri…
Cavernous sinus metastasis from oropharyngeal squamous cell carcinoma.
2007
Metastasis to the cavernous sinus from head and neck cancer is uncommon and has been previously reported by a few authors. It is usually a late manifestation of the primary tumor and may be the first evidence of a widespread dissemination of the disease. Main clinical findings are those related with involvement of cranial nerves III to VI as they pass through the cavernous sinus. Although diagnosis may be difficult, the appearance of clinical and radiological findings of cavernous sinus involvement in a context of head and neck cancer must alert us about an intracranial metastatic infiltration. In most cases treatment is palliative with radiotherapy and/or chemotherapy. The prognosis of thi…
Incidence of oral sinus communications in 389 upper third molar extraction
2006
Podeu consultar la versió en castellà a http://hdl.handle.net/2445/117329